Angular 6 References/ CLI
References
Oleksa Novyk | GitHub

ng add

This is the documentation for Angular 6.
You can switch to the latest version Angular 10. 
ng add [name]

Add support for a library to your project.

Hint
`ng add` helps you add new capabilities to your app — this command will install the dependencies and then invoke the installation script which will take care of all the rest.
Links & Tutorials